Improved clasp for closing preserve-jars



J. A. COWLES.

Fruit Jar No. 38,288. Patented Apr. 28, \863.

Witnesses= Inventor;

AM. PHUTO-LITND.CO.N.Y. (DSBDRNE'S PROCESS.)

V UNITED STATES PATENT O FICE,

JAMES A. COVVLES, OF CHICAGO, ILLINOIS.

IMPROVED CLASP FOR CLOSING PRESERVE-JARS.

To (ZZZ whom it may concern:

Be it known that I, JAMEsA. CoWLns, of Chicago, in the county of Cook and State of Illinois, have invented a new and Improved Method of Constructing Preserve-Jars; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in providing a preservejar with a clasp or fastening which firmly holds the cover in its position and makes a perfectly air-tight joint. The jar can be made of glass or any metal, and of any desired capacity and in the ordinary form. The cover 13 can also be made of glass or any metal, or of wood; but I prefer to make it of glass.

To enable other skilled in the art to make and use my invention, I will proceed to de scribe its construction and operation.

Figure 1 is a section through the jar and top, showing the clasp and flexible packing. Fig. 2 is a top view with the cover on and fastened to the clasp.

A, Fig. 1, is the body of the jar. The cover B is placed on the jar as represented in the figure, resting on the shoulder f f. Between this shoulder and the cover B is placed a packing of rubber, c 0.

d d d is a clasp or fastening, made of Wire of suitable size. This wire is bent, as seen in Fig. 2, 0 0. It is bent in such a form as to admit of its fitting snugly-around the neck of jar; or, instead of fitting snugly around the neck, it may closely fit at only a short space on each side of the neck at the extremities of the line at n, Fig. 2. The arms of the clasp extend but a short distance past the center of the jar, as seen by the dotted lines c, Fig. 1, which show the arm on one side of the neck of the j ar. An arm of the same character is on the opposite side. The top of the cover is made in the shape shown in Fig. 1. The center of the top is raised, as seen in Fig. 1. The clasp fits at only one place on the cover, through the line n n, Fig. 2, which passes through the center of the cover. This distributes the pressure uniformly on the packing c 0, thus securing a perfect air-tight joint.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The clasp d d (1, operating and working sub- XVitnesses:

DANIEL GOODWIN, J12, Gno. IV. GRAY. 

